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(No Model.) 4 Sheets-Sheet 1 .J. KLEIN.

LIQUID COOLER.

No. 444,558. Patented Jan. 13, 1891..

(No Model.) 4 SheetsSheet 2.

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LIQUID COOLER;

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UNITED STATES PATENT GrrrcE.

.IOHANN KLEIN, OF FRANKENTHAL, GERMANY.

LIQUID-COOLER.

SPECIFICATION forming part of Letters Patent No. 444,558, dated January13, 1891.

Application filed July 17, 1890. Serial No. 359,031. (No model.)Patented in Austria-Hungary February 24, 1890,11'0. 1,077.

To all whom it may concern.-

Be it known that I, J OHANN KLEIN, a citizen of the Empire of Germany,residing at Frankenthal,in the Kingdom of Bavaria and Empire of Germany,have invented certain new and useful Improvements in Liquid- Coolers,(for which I have obtained a patent as follows: in Austria-Hungary, No.1,077, Johann Klein, in Frankenthal, apparatus for cooling of liquidsrespectively precipitating vapors or gases, allowed February 24, 1890,priority dating from 2d of November, 1890. First tax paid. Open 40/568,)and I do hereby declare that the following is a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to makeand use the same.

In the diiferent branches of manufacture making use of cooling-water toobtain the products it becomes often necessary that the cooling-wateronce used has to be used over again, either because the water is scarceor that the cost of getting water is relatively high. In such cases thewater may be cooled down by means of a proper apparatus so far that thewater can be used again. The simplest and cheapest Way is to bring thewater in most intimate contact with air, as thereby one part of thewater evaporates, and the heat required for this evaportion is takenfrom the remaining water. The temperature of the latter willconsequently fall. The evaporation and therewith the cooling off dependsfrom the intimate contact of the water with the air. In order to obtaina good result, the mixing of water and air must be so intimate that thecapability of the air to evaporate water and to take up the vapors isutilized to the utmost point.

The apparatus hereinafter more in detail described are composed of amore or less polygonal or cylindrical vertical shaft, wherein waterrippling down from the top is brought into most intimate contact with acurrent of air moving in the opposite direction.

The accompanying four sheets of drawings represent such apparatus, andFigures 1 and 2, Sheet 1, are vertical sections through the apparatus.Fig. 3 is a top view, and Figs. at and 5, Sheet 2, are details of theapparatus on an enlarged scale. Figs. 6 and 7, Sheet 3,

also represent detail views of parts of the apparatus. Figs. 8 and 9,Sheet 1-, show verti cal sections of a similar apparatus, but with themodification that a certain number of apparatus is employed aside ofeach other or one behind the other. Fig. 1 on Sheet 4 is a cross-sectionthrough the apparatus, and Fig. 2 an elevation, partly in section.

In the figures, a is a square or round shaft, of sheet-iron, wood, orbrick-work, wherein several series of wooden partitions c c and c c arearranged vertically aside of each otherin such a way that the partitionsc of one series stand crosswise in the plane to the other series c orstand under angle. These partitions are supported at the top by twojoints 7) Z), Figs. 4 and 5, resting upon projections from the wall ofthe shaft and which are keptapart in the right distance by joists (Z (Z,placed outside of the partitions but over the joists b b, and which arecorrespondingly notched. The top end of the partitions are provided withstrips of sheet metal 6, riveted together, forming a gutter over eachrow of partitions and equally distributing the liquid to be cooled whichcomes from the feed-pipe f and the branch pipes f f The borders of thespouts are toothed or indented. At the lower end of the lath blades h hare provided for the purpose of equally distributing the liquid comingfrom above upon the next series of partitions c 0'. These bladesincreasein width so that their ends come in close contact with each other at thebottom of spouts e, out into the top of the rows of partitions c 0,Figs. 4 and 5, and by these means the partitions are also kept in theright distance from each other. The partitions c c of the second series,resting also on joints 1) b',supported by projections in the wall ofshaft a, are also kept apart by notched joistsd' (1 applied at thesides. The second series of partitions is not in the same plane as thefirst, but is placed crosswise, so that the liquid coming from the firstseries 0 c continues to ripple down the partitions c c in another plane,finally to be gathered by spouts t' t' at the lower ends of partitions oc and to be conducted toward the back side 70, wherefrom it can pourdown through pipe 70' into the reservoir Z. In order to effect an evenoverflow of the liquid from the first series of partitions 0 upon thesecond series 0, the laths 0 may be provided at their top ends with twoindented strips of sheet metal 0 0, Sheet 3, and the partitions 0 may bemade to run outin points. The metal strips 0 0 act then like spouts andpermit the liquid gathering between them to flow off evenly. The currentof air necessary for the cooling of the liquid is produced by aventilator g, arranged on the side of the shaft (1, and is led into thesaid shaft by means of convenient connections.

The liquid to be cooled is lifted by means of pumps through pipe f andbranch pipes f f, and thus carried upon the rows of partitions 0 c and cc, crossing each other in plane. The same ripples down the partitions inthin and even sheets and the descent is slackened by adhesion and by thegrooves 22 12, cut horizontally into the partitions, Figs. 4 and 5, andthus contact with the air passing in opposite direction is made mostintimate,whereby part of the temperature passes over to the air,whereupon it arrives cooled off in the reservoir Z. The water evaporatedduring the process of cooling escapes with the upward-rushing airthrough the top of the shaft.

It is obvious that the formation of drops of falling water is avoided bythis invention,for the water led to the top of the apparatus isdistributed in thin and even quantities on the single rows of partitionsand is gathered below by the spouts 1'. The fixed feed-pipef, with itsoverflow and safety pipe f, Figs. 1 and 2, may be substituted by anoscillating or revolving device, feeding the liquid into the spouts c.

Sheetstshows a cooling device of the abovedescribed nature adapted for afactory working on a large scale. Several of the superposed series ofwooden partitions c c c c are arranged in brick-work shafts erectedbeside another as well as behind each other. Fig. l is a section throughthe device, and Fig. 2 is a side elevation, partly in section. f is thefeed-pipe of the liquid arranged in the middle of the device and leadingit evenly sidewise upon the ditferent shafts. q are ventilators arrangedon the sides, all receiving motion by means of belts and pulleys fromone centrally-located point. In principle the device is the same as theone described with reference to Sheet 1 of the drawings. It may be stillmentioned that in place of wooden partitions corrugated sheet metal maybe employed.

In order to cause eddies in the ascending air, the plugs in m areinserted in steps into the partitions, as shown by the figures of Sheets2 and 3 on a larger scale, so that the ascending air in finding its wayobstructed by the plugs will be caused to eddyabout the partitions anddelayed in its passage, so as to exert its refrigerating-power to thebest advantage.

In allowing vapors orgases to enter into the shaft at bottom they willbe taken up or dissolved by the water rippling down; also in thisrespect the apparatus may be employed.

I claim- 1. In a liquid-cooler, a casing u, in combination with an upperseries of partitions c and a lower series of partitions c, the latterbeing arranged at an angle to the former within said casing, and meansfor supplying liquid to one end of said casingand acurrent of air to theother end thereof, substantially as set forth.

2. In combination with an upper series of partitions and a lower seriesof partitions arranged at an angle thereto, a series of blades attachedto the former series of partitions for conducting liquid therefrom intothe lower series of partitions without crossing the path of theair-current, a casing inclosing said series of partitions, a fan forforcing air into one end of said casing, and a tube forsupplying liquidto the other end, substantially as set forth.

In testimony whereof Iaifix my signature in presence of two witnesses.

J OHANN KLEIN.

Witnesses:

Anon Hnnzoo, ROBERT GROPP.

